LCM of 285, 605, 671, 931
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 285, 605, 671, 931 with the LCM of Two or More Numbers Calculator. Here we are teaching you two different methods through which you can calculate the LCM of 285, 605, 671, 931. So, keep reading to learn more.
Given numbers are 285,605,671,931
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 285,605,671,931 is 103075665.
Find LCM of 285,605,671,931 with Prime Factorization
| 5 | 285, 605, 671, 931 |
| 11 | 57, 121, 671, 931 |
| 19 | 57, 11, 61, 931 |
| 3, 11, 61, 49 |
Multiply the prime numbers at the bottom and the left side.
5 x 11 x 19 x 3 x 11 x 61 x 49 = 103075665
Therefore, the lowest common multiple of 285,605,671,931 is 103075665.
LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}
Firstly, we have to find the product of all the numbers.
285 x 605 x 671 x 931 = 107714069925
Then, let us find the GCF of these five numbers. To do so, we have to list down the factors for each number and choose the highest factor that is in all of the lists.
285 : 1, 3, 5, 15, 19, 57, 95, 285
605 : 1, 5, 11, 55, 121, 605
671 : 1, 11, 61, 671
931 : 1, 7, 19, 49, 133, 931
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 285,605,671,931, is 1.
Now, the common factors can be found like this.
285:3x 5x 19
605:5x 11x 11
671:11x 61
931:7x 7x 19
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
5x 11x 19 = 1045
Therefore, the value for common factors is 1045.
Now that we have all the elements of the formula, we can plug them in to calculate the LCM.
LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}
LCM = 107714069925/(1x1045)
LCM = 107714069925/1045
LCM = 103075665
Thus, we can understand that the LCM of 285,605,671,931 is 103075665.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 285, 605, 671, 931
1. What is the LCM of 285, 605, 671, 931?
Answer: LCM of 285, 605, 671, 931 is 103075665.
2. How to calculate the LCM of 285, 605, 671, 931?
The LCM can be found using two methods. You can either use the LCM formula or the prime factorization method to calculate the LCM of 285, 605, 671, 931.
3. What is the LCM formula?
The LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}.